Garage Door Opener Repair

Your garage door opener is the engine and brain of your entire system. When it fails, you’re left with a door that’s stuck, noisy, or completely unresponsive. A malfunctioning opener isn’t just an inconvenience; it can be a security risk. Whether the motor is humming, the remotes won’t work, or the door simply won’t budge, you need a fast and reliable diagnosis.

At Alfonso Garage Door, we are opener specialists. We service all major brands, including LiftMaster, Genie, and Chamberlain. Our technicians are experts at diagnosing both mechanical and electrical issues, from stripped gears to faulty logic boards, and provide same-day service throughout the Bay Area to get your opener working again.

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The Telltale Signs of a Malfunctioning Opener

Opener problems can be mechanical (gears, motor) or electrical (sensors, logic board). Here are the most common symptoms.

Symptoms of an Opener Problem:

Opener Motor Hums, But Door Doesn't Move

This is a classic symptom. You hear the motor straining, but the chain or belt isn’t moving. This almost always means the internal gears are stripped. It can also be a sign of a disconnected trolley.

Opener Makes No Sound and Has No Lights

If your opener is completely dead, the first step is to check the power. It could be a tripped circuit breaker or GFCI outlet. If the power is fine, the opener’s logic board or transformer may be fried.If the door closes all the way, hits the floor.

Door Reverses When Closing (or Blinking Lights)

If the door starts to close and then shoots back up, the problem is almost always your safety sensors. This is an opener function, but the problem is with the sensors (misaligned, dirty, or faulty).

Can I Fix It Myself?

Some opener issues are safe to troubleshoot, but most mechanical repairs are not.

Safe DIY Checks:

Check Power: Is the opener plugged in? Check your home's circuit breaker and any GFCI outlets in the garage.
Check Batteries: Replace the batteries in your remotes.
Check Sensors: Clean the sensor lenses and check their alignment lights.
Check "Lock" Button: Make sure the "Lock" mode on your wall console isn't activated.
The Manual Test: Pull the red emergency release cord (with the door closed) and try to lift the door by hand. If the door is extremely heavy or won't lift, your problem is a broken spring, NOT the opener.

When to Call a Professional

If you hear the motor humming but the door won’t move (stripped gears).
If the opener has power but does nothing (bad logic board).
If you suspect a malfunctioning opener after trying all the DIY checks.
For any repair that involves opening the motor housing.

What to Do Right Now If Your Opener Fails

Follow these steps in order:

Step 1: Check the power source (breaker and GFCI outlet).
Step 2: Check your remotes and the "Lock" button on the wall.
Step 3: Check the safety sensors for alignment and obstructions.
Step 4: Pull the red emergency release cord. Try to lift the door by hand. If it's heavy, your spring is broken, and you must call us for a spring repair.
Step 5: If the door lifts easily by hand, the problem is confirmed to be the opener. Call Alfonso Garage Door at (408) 580-7949.

How Long Does Opener Repair Take?

Our technicians are opener experts and can perform most repairs quickly.

Typical Opener Repair Timeline:

We carry the most common repair parts (gear kits, logic boards, sensors) for LiftMaster and Genie on our trucks.

Preventing Future Opener Problems

Hinge failure is almost always preventable with one simple task: lubrication.

Common Causes of Failure:

Power Surges: Fries the logic board.
Worn Gears: The plastic gears wear down and strip after 10-15 years.
Broken Springs: A broken spring puts immense, fatal strain on the opener, burning out the motor.
Age: Electronics and motors simply wear out over time.

Need Help With a Malfunctioning Opener? We're Ready to Help!

Don’t let a malfunctioning opener trap your car or leave your home unsecured. Whether it’s a simple adjustment, a stripped gear, or a fried logic board, our technicians can diagnose and fix the problem today.

Why Choose Alfonso Garage Door?

Same-Day Service Available - We understand you can't wait days for repairs
Experienced, Licensed Technicians - Our team has 10 years of combined experience
Transparent Pricing - Clear estimates before we start, no hidden fees
Quality Parts & Workmanship - We use high-cycle springs rated for 20,000+ cycles

Our Expert Technicians

Safety is Our Top Priority

We adhere to the highest industry standards for safety. A broken spring repair is dangerous, and we take that risk seriously.

We follow all DASMA Garage Door Safety Guidelines on every job.
Our safety protocols and training are aligned with OSHA Safety Standards to protect both our technicians and your property.

A Seasonal Warning for Homeowners

Winter storms and holiday decorations are the top two seasonal enemies of your opener. Power surges from storms can instantly fry an opener’s logic board. We highly recommend plugging your opener into a surge protector. Secondly, new LED holiday lights can create radio frequency (RF) interference that blocks your remote’s signal. If your remotes stop working when you turn on your lights, you’ve found the culprit!

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Frequently Asked Questions

My opener hums but won't move. What's wrong?

This is almost always one of two things: 1) A stripped gear inside the opener, or 2) A broken garage door spring. Pull the emergency release cord and try to lift the door. If it's heavy, the spring is broken.

Is it better to repair or replace my opener?

If your opener is over 15 years old, it's often more cost-effective to replace it. New openers are quieter, have better security, and come with WiFi/app features. If the opener is newer, a simple repair (like a gear or logic board) is the best choice.

Why did all my remotes stop working at once?

First, check the "Lock" button on your wall console. Second, you may have RF interference from a new LED lightbulb or appliance. Third, the receiver on the opener's logic board may be faulty.

What does the blinking light on my opener mean?

It's an error code, and 99% of the time, it's telling you there is a problem with your safety sensors (misaligned, blocked, or dirty).

Garage Door Opener Repair

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The Telltale Signs of a Malfunctioning Opener

Symptoms of an Opener Problem:

Opener Motor Hums, But Door Doesn't Move

Opener Makes No Sound and Has No Lights

Door Reverses When Closing (or Blinking Lights)

Can I Fix It Myself?

Safe DIY Checks:

When to Call a Professional

What to Do Right Now If Your Opener Fails

Follow these steps in order:

How Long Does Opener Repair Take?

Typical Opener Repair Timeline:

Preventing Future Opener Problems

Common Causes of Failure:

Need Help With a Malfunctioning Opener? We're Ready to Help!

Why Choose Alfonso Garage Door?

Our Expert Technicians

Alfonso

David

Ben

Alex

Safety is Our Top Priority

A Seasonal Warning for Homeowners

Testimonial

Hear From Our Satisfied Customers

Service Areas

Frequently Asked Questions

My opener hums but won't move. What's wrong?

Is it better to repair or replace my opener?

Why did all my remotes stop working at once?

What does the blinking light on my opener mean?

We come to you anywhere in the Bay Area

(408) 580-7949

Service Hours

Sunday - Friday

7:00 AM - 11:00 PM

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